Research Article
The Heterogeneity of Asthma Phenotypes in Children and Young Adults
Table 1
Definitions and distributions of asthma phenotypes.
| | Phenotypes () | Onset ≤3 Years | Onset >3 years | Asthma at 7 years | Asthma at 13 and/or 21 years |
| | Healthy = no asthma (NA) (, 89%) | No | No | No | No | | Early onset asthma (EOA) (, 3.1%) | Yes | — | — | Yes | | Late onset asthma (LOA) (, 8.4%) | No | Yes | — | Yes |
|
|
